Assignee
Inventors
- Yoshimasa Machida (42 patents)
- Takashi Kamiya (53 patents)
- Shigeto Negi (38 patents)
- Toshihiko Naito (15 patents)
- Yuuki Komatu (13 patents)
- Seiichiro Nomoto (32 patents)
- Isao Sugiyama (24 patents)
- Hiroshi Yamauchi (17 patents)
US Patent 5373000 · Granted Dec 13, 1994